Year: 2004
Type: article
Abstract: We derive a bound on the total number of negative energy bound states in a potential in two spatial dimensions by using an adaptation of the Schwinger method to derive the Birman–Schwinger bound in three dimensions. Specifically, counting the number of bound states in a potential gV for g=1 is replaced by counting the number of gi’s for which zero energy bound states exist, and then the kernel of the integral equation for the zero-energy wave functon is symmetrized. One of the keys of the solution is the replacement of an inhomogeneous integral equation by a homogeneous integral equation.
Source: Journal of Mathematical Physics
DOI: 10.1063/1.1639956
Authors: André Martin, Tai Tsun Wu
Language: English
Subfield: Mathematical Physics
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
Funders: U.S. Department of Energy, CERN
Award: G222768804
OpenAlex ID: W2006785689
